Allowance for Credit Losses - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Mar. 31, 2022	Dec. 31, 2021
Provision for Loan and Lease Losses [Abstract]
Increase (decrease) in ACL during period	$ (1,400)	$ (34,200)	$ (1,700)	$ (35,200)
Net charge-offs	5,200	1,100	5,700	2,400
Provision (recapture) for credit losses	3,803	(33,131)	4,014	(32,816)
Allowance for off-balance sheet commitments	24,100		24,100		$ 27,500	$ 27,400
Provision for credit losses for off-balance sheet commitments	$ 3,400	$ 5,400	$ 3,200	$ 3,700